diff options
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/torture/pr54877.c | 23 | ||||
| -rw-r--r-- | gcc/tree-vect-loop.c | 2 |
4 files changed, 35 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index dfe39b4..b2a05a9 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2012-10-10 Jakub Jelinek <jakub@redhat.com> + + PR tree-optimization/54877 + * tree-vect-loop.c (vect_is_simple_reduction_1): For MINUS_EXPR + use make_ssa_name instead of copy_ssa_name. + 2012-10-10 Richard Biener <rguenther@suse.de> * lto-streamer-in.c (lto_input_location_bitpack): Rename to ... diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index c2e2f5b..009aab8 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2012-10-10 Jakub Jelinek <jakub@redhat.com> + + PR tree-optimization/54877 + * gcc.dg/torture/pr54877.c: New test. + 2012-10-10 Venkataramanan Kumar <venkataramanan.kumar@amd.com> PR testsuite/53397 diff --git a/gcc/testsuite/gcc.dg/torture/pr54877.c b/gcc/testsuite/gcc.dg/torture/pr54877.c new file mode 100644 index 0000000..cee406e --- /dev/null +++ b/gcc/testsuite/gcc.dg/torture/pr54877.c @@ -0,0 +1,23 @@ +/* PR tree-optimization/54877 */ +/* { dg-do run } */ +/* { dg-options "-ffast-math" } */ + +extern void abort (void); + +int +foo (void) +{ + double d; + int i; + for (i = 0, d = 0; i < 64; i++) + d--; + return (int) d; +} + +int +main () +{ + if (foo () != -64) + abort (); + return 0; +} diff --git a/gcc/tree-vect-loop.c b/gcc/tree-vect-loop.c index 58edfcb..6b8ba3f 100644 --- a/gcc/tree-vect-loop.c +++ b/gcc/tree-vect-loop.c @@ -2382,7 +2382,7 @@ vect_is_simple_reduction_1 (loop_vec_info loop_info, gimple phi, if (orig_code == MINUS_EXPR) { tree rhs = gimple_assign_rhs2 (def_stmt); - tree negrhs = copy_ssa_name (rhs, NULL); + tree negrhs = make_ssa_name (TREE_TYPE (rhs), NULL); gimple negate_stmt = gimple_build_assign_with_ops (NEGATE_EXPR, negrhs, rhs, NULL); gimple_stmt_iterator gsi = gsi_for_stmt (def_stmt); |